Introduction: Flyback Driver/ Joule Thief

here is a circuit diagram

Step 1: Parts

you need a npn transistor a resistor and a toroidal transformer and capacitor is optional

Step 2: Asembley

assemble the circuit from the diagram

Step 3: Done

hope you are happy with circuit

Comments

author
TP_inc (author)2013-12-03

http://www.circuit-diagram.org/ From now on you should use this to make your circuits

author
dillonxti (author)TP_inc2014-04-27

thanks

author
dillonxti (author)2013-12-03

any capacitor will work except electrolytic type

author
dillonxti (author)2013-12-03

I am using a mkp capacitor any size will work under 1uf

author
rborsuk (author)2013-12-03

Hi,
Some quick things:
1. What turns ratio did you use?
2. What is the NPN transistor you used?
3. How are you using this circuit?
4. The toroidal transformer came from what?
Any additional information you can provide would be helpful.
Thank you for the instructable.
Rob

author
rborsuk (author)rborsuk2013-12-03

Also looks like you have a capacitor in the circuit, what size and type?

Thanks,
Rob

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Bio: I like doing random electronics high voltage projects
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